Hyundai Kona: Fuel Delivery System / Delivery Pipe Repair procedures

Removal
  
In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don’t do any repair work right after engine stops.
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the high pressure fuel pipe (A).

5.
Disconnect the injector connectors (A) and the rail pressure sensor connector (B).
6.
Remove the installation bolt (D), and then remove the delivery pipe and injector assembly from the engine.

Installation
  
Do not reuse injector fixing clip.
Do not reuse the support disc.
Do not reuse the injector rubber washer.
Do not reuse the combustion seal.
Install the component to the specified torques.
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
Apply engine oil to the injector O-ring.
Do not reuse injector O-ring.
Do not reuse bolt.
When inserting the injector, be careful not to damage the injector tip.
1.
Install in the reverse order of removal.
Delivery pipe mounting bolt :
18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft)
High pressure fuel pipe flange nut :
26.5 - 32.4 N.m (2.7 - 3.3 kgf.m, 19.5 - 23.9 lb-ft)
Accelerator Pedal Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Disconnect the accelerator position sensor ...

High Pressure Fuel Pump Specifications
Specification Items Specification High Pressure Fuel Line bar 20 - 200 MPa 2 - 20 ...

Other information:

Hyundai Kona (OS) 2018-2022 Owners Manual: Explanation of scheduled maintenance items
Engine oil and filter The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the vehicle is being driven in severe conditions, more frequent oil and filter changes are required. Drive belts Inspect all drive belts for evidence of cuts, cracks, excess ...

Hyundai Kona (OS) 2018-2022 Service Manual: Special service tools
Special Service Tools Tool (Number and Name) Illustration Application Fuel Pressure Gauge (09353-24100) Measuring the fuel line pressure Fuel Pressure Gauge Adapter (09353-02100) ...

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